Repeating attachment for sound-reproducing instruments.



, L E. H. JOSEPHSON. EEEEEEEEEEEEEEEEEEE rim souno REPRODUCING INSTRUMENTS.

. A ION FILED JUNEIOJ9I6- 4 1 218 408, Y Patented Mar. 6 1917.

Y I I 2 EEEEE s EEEEE t.

E. H.10SEPHSON. REPEATING ATTACHMENT FOR SOUND REPRODUCING INSTRUMENTS. APPLICATION FILED JUNE 10, I916- Patented Mar. 6,1917.

2 SHEETS-SHEET 2.

ESKIL H. JOSEPHSON, or cmcaeo, rumors.

REPEAT-ma ATTACHMENT FOR SOUN 'D-REPRODUCING INSTRUMENTS.

I To all whom it concern:

Be it known that I, ESKIL H..JosnrnsoN, a subjectof the King of Sweden, (who have declared my intention of becoming a citizen of the United States,) and a resident of the city of Chicago, county of Cook, and State of. Illinois, have invented certa n new and useful Improvements in Repeating Attachments for' Sound-Reproducing Instruments, of which the following is a specification My invention relates to improvements in v sound reproducing instruments, and has for its object the provision of an improved repeating attachment therefor, which is of simple construction and eflicient in use.

The invention consists in the combina-' tions and arrangements of parts herelnafter described and claimed.

The invention will be best understood by reference to the accompan ing drawing forming a part of this speci cation, and 1n which, a I

Figure 1 is a top plan view of an mstrument equipped with an attachment embodyin}; my invention,

Fig. 2, a vertical section taken through the upper portion of said mstrument,

Fig. 3, a section taken on line 3--3 of Fi 2 'i ig 4, a section taken on line 44 of Fig. 2, and" r Fig. 5, a section taken on l1ne 55 of I Fig. 2.

The preferred form of construction, as illustrated in the drawings, comprises a suitable bracket 6 pivotally mounted at '7 .in a clip 8 swiveled at 9 on the top of aw j 14 of the usual spindle 15 of the sound reproducing instrument, the upper end 14 post 10, secured to the base 11 of the sound reproducing instrument, the particular instrument illustrated being one employmg a disk rotating on a vertical ax1s. A spmdle, 12 is rotatably mounted at the inner end of the bracket 6 and is provided, at its lower end, with asquare or other non-circular socket 13 adapted to'fit over the upper end being shaped to fit said socket, as indicated. the usual rotating table 16 is mounted on the spindle 15 in position to serve as a mounting for the usual record disk 17 having the usual spiral grooves and mdentations 18 for reproducing sound in'the usual manner, coiiperating with a stylus or needle 19 on the end of the usual tone arm 20 of the instrument; A hearing bar,

'out of engagement with 21 i s pivotally mounted at 22 in the bracket 6 1n 1 position to traverse the disk 17 and l-ie under the path of travel of the tone arm 20. A roller 23 is rotatably mounted in a clip or bracket 24 secured to said tone arm in position to'travel along the upper surface of the bearing member 21, as the tone arm travels inwardly on the disk 17 in the usual manner. A stop block 25 is adjustably secured to the outer end of the bearing member 21 and carries an indicating finger 23 adapted to be set in egistration with the outermost groove on the disk 17 as in dicated, the bearing member 21 being graduated -toindicate positions for different sizes of disk 17. Another adjustably secured on the inner end of-the bearing member 21 and carries an indicating finger arranged to be set in registration with the innermost groove onvdisk 417. A bell crank 29 is pivotall mounted on stop block 27 and is provided with a depending arm 30 having a laterally extending finger 31 resting under a vertically shiftable' rod 32 on bearing member end rod 32 carries a swiveled dog 33 adapted to engage threads 34 and 35 on spindle 12,

'21.. At its inner- Specification of Letters Patent 4 Patented Mar. 6,1917. 7 Application medium-10,1918. Serial No. 102,965.

step block 27 is the threads 34 being of comparatively slight pitch, the

bearing member 21. An annulargroove 36 is provided at the lower portion of spindle 12 and in which the dog .33 normally-rests the threads on said spindle; Another annular groove 37 is pro vided at the upper end of the threads 34 and 35- cooperating therewith. to 'direct the dog '33 from the threads 34 into the thread 35. i I a In operation, as tone arm 20 travels'inwardly over the disk 17, the upper. arm '29 of the bell crank on block 27 is by said tone arm when said tone arm reaches the innermost limit of its'movement, thus operating said bell crankto elevate dog 13 into position to engagethreads 34 on spindle 12. The operation o.f. threads 34 on the dog 33 is to elevate the inner end member 21 to such an inclination that the tone arm 20 will be caused to travel of bearing engaged of the instrument.

.34, it-runs into groove 37 downwardly thereon by the action of gravity and thus return to initial position adjacent the outer edge of disk 17. When dog-33 reaches the upper end of threads thread 35, being rapidly depressed and rapidly returning the bearing mem er 21 to normal position. This throws the stylus 19 of the tone arm 20 into engagement with the grooves on the upper surface of the disk 17, causing repetition of the action The specific combination and arrangement of partsdisclosed is simple and an efficient one for the purpose.

While I have illustrated and described the preferred form of construction for carrying my invention into effect, this is capable of variation and modification without departing from the spirit I, therefore, do not wish to be limited to the precise details of construction set forth,

but desire to avail myself of such variations and modifications as come within the scope of the appended claims,

Having described my invention what I claimas newand desire to secure by Letters Patent is:

1. The combination with a sound reproducing instrument comprising a rotating spindle, a record member on said spindle and a tone arm arranged to traverse said record member, pf a bearlng member for said tone arm located inoperative relation thereducing .with; a block adjustable on said bearing member and bearmg-lan indicating finger registerably' with the sound grooves in said record member; tllting' said hearing me ber man inclina- :1 tion to return saidtone arm to initial position; and means onsaid block controlling said tilting means, substantially as described;

- 2. The combination with a sound repr0- a tone arm arranged to traverse said record member, of}; bearing member for said tone arm located 1n operative relation. therewith;

I 3 a block adjustable on ,said bearingmember I a bearing member and bearing an indicating finger registerably with the sound producing grooves in said record member; means for tilting said bearing member at an inclination to return said tone arm to initial position; and a bell crank lever on said block'operable by said tone arm and arranged to operate said tilting .means, substantially as descrlbed.

3. The combination with a sound reproducing instrument comprising a rotating spindle, a record disk on said spindle and a tone arm arranged toftraverse said disk, of for 'saidvtone arm located in operative relation with said disk; a spindle connected with said first mentioned spindle and provided withan elevating and a depressing thread; a dog on said bearing and thence into of the invention.

\ producing 1 means .for

instrument comprising a rotating spindle, a record member on sald splndle and member arranged to engage said threads; and means opera-bleby the motion of said tone arm for throwing said dog into engagement with said threads, substantially as described. 1

a. The .combination with a sound reproducinginstrument comprising a rotating spindle, a record disk on said. spindle and a tone arm arranged to traverse said-disk, of a bearlng member for sald tone armlocated 111 operative 5. The combination with a sound reproducing instrument comprising a rotating spindle,'a record disk on said spindle'and a tone arm arranged to traverse said disk, of

. a bearing member for said tone arm located relation with said disk; a

in operative spindle connected with said first mentioned spindle and provided with an elevating and a depresing thread; a dog on said bearing member arranged to engage. said threads; a

bell crank on said bearing member set in the' path of said tone arm; and an operative 1 connection between said bell crank and said dog arranged to throw said dog into engage ment with said threads when said tone arm reaches the inner limit of its movement, substantially as described.

6. The'combination with a sound repro- I ducing instrument comprising a rotating spindle, a record disk on said spindle and a tone arm arranged to traverse said disk, of

for said tone arm located f a bearing member in operative relation with said disk; a spindle detachably connected with said first mentioned spindle and provided with an elevating and depressing said bearing member arranged to engage said threads; a bell crank on said bearing member set in the path of said tone arm; and an operative connection between said 1 bell crank and said dog arranged to throw said dog into engagementwith said threads when said tone arm reaches the inner limit of its movement, substantially as described.

7. The combination with a sound reproducing instrfiment comprising a suitable base, a rotating spindle on said base, a record disk on said spindle and a tone arm arranged to traverse said disk, of a clip swiveled to said base beyond the periphery of said disk; a bracket pivoted to said clip and arranged. to traverse said disk under the path of travel of said tone arm; a spindle rotatably mounted at the inner, end of said bracket and having a' detachable operative connection with the sp' dle of'the sound remember arranged to engage 80 thread; a dog on 1 producing instrument; oppositely arranged said dog; and an operative connection bethreads on said spindle; the upwardly actmg tween said tone arm and said bell crank 15 thread being of comparatively small but whereby said tone arm causes shifting of gradually increasing pitch and, the down said dog into engagement with" said threads o wardly acting thread being of comparatively when the tone arm reaches the inner limit steep pitch; a bearing member pivotally of its movement, substantially as described.

mounted on said bracket under the path of In testimony whereof I have signed my 20 travel of said tone arm; a roller on said tone name to this specification in the presence of arm traveling on said bearing member; atwo subscribing witnesses. 1

10 dog on said bearing member arranged to be I ESKIL H. JOSEPHSON. shifted into engagement with the threads Witnesses: on the spindle thereon; a bell crank on said. JOSHUA R. H.POTTS. bearing member operatively connected with HELEN F. LILLIS. 

